Improve shutdown sequence

I've come to the conclusion that copyright mostly just stands in the way
of software development.  In my jurisdiction I cannot give up my own
copyright and 0BSD seems to be the closest thing to public domain.

The updated mail address, also used in my author/committer lines,
is shorter and looks nicer.  People rarely interact anyway.

LICENSE

@@ -1,8 +1,7 @@
-Copyright (c) 2017, Přemysl Janouch <p.janouch@gmail.com>
+Copyright (c) 2017, Přemysl Janouch <p@janouch.name>
 
 Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
+purpose with or without fee is hereby granted.
 
 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

README.adoc

@@ -34,16 +34,12 @@ be run in a dedicated directory.
 Contributing and Support
 ------------------------
 Use https://git.janouch.name/p/gitea-obs to report any bugs, request features,
-or submit pull requests.  If you want to discuss this project, or maybe just
-hang out with the developer, feel free to join me at irc://irc.janouch.name,
-channel #dev.
+or submit pull requests.  `git send-email` is tolerated.  If you want to discuss
+the project, feel free to join me at ircs://irc.janouch.name, channel #dev.
+
+Bitcoin donations are accepted at: 12r5uEWEgcHC46xd64tt3hHt9EUvYYDHe9
 
 License
 -------
-'gitea-obs' is written by Přemysl Janouch <p.janouch@gmail.com>.
-
-You may use the software under the terms of the ISC license, the text of which
-is included within the package, or, at your option, you may relicense the work
-under the MIT or the Modified BSD License, as listed at the following site:
-
-http://www.gnu.org/licenses/license-list.html
+This software is released under the terms of the 0BSD license, the text of which
+is included within the package along with the list of authors.

main.go

@@ -191,12 +191,8 @@ func main() {
 	server := &http.Server{Addr: listenAddr}
 
 	// Run the producer
-	go func() {
-		if err := server.ListenAndServe(); err != nil &&
-			err != http.ErrServerClosed {
-			log.Fatalln(err)
-		}
-	}()
+	errs := make(chan error, 1)
+	go func() { errs <- server.ListenAndServe() }()
 
 	// Run the consumer
 	ctx, ctxCancel := context.WithCancel(context.Background())
@@ -217,7 +213,12 @@ func main() {
 	// Wait for a termination signal
 	sigs := make(chan os.Signal, 1)
 	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
-	<-sigs
+
+	select {
+	case <-sigs:
+	case err := <-errs:
+		log.Println(err)
+	}
 
 	// Stop the producer gracefully
 	ctxSd, ctxSdCancel := context.WithTimeout(context.Background(), 5)